Have you see that photo? These is my problem for a few years already. I've been trying different kinds of remedies and went to the doctor for a few times too and they send me off some allergy medication that makes me too drowsy to do much anything and give me loads of smelly creams and sticky ointments that only mask the problem. I'm really tired and seek of it. And I get depressed when I see my scalp is flaking.
My sister has the same problem too, and her doctor advice her to use a T/Gel Therapeutic Original shampoo such as Netrogena. It helps control itching and flaking symptomatic of scalp psoriasis, seborrheic dermatitis and even common dandruff. This rich T/Gel therapeutic shampoo lather gently cleanses, leaving hair lustrous and manageable even with everyday use.
She's been telling me that this skin problems has something to do with our genes. My father has the same problem too but he got it on his lower legs. He is been using dermovate cream ointment for ages.